Global Patent Index - EP 4251605 A1

EP 4251605 A1 20231004 - AN ENVIRONMENT-FRIENDLY PROCESS FOR SELECTIVE ACYLATION OF AMINOPHENOL

Title (en)

AN ENVIRONMENT-FRIENDLY PROCESS FOR SELECTIVE ACYLATION OF AMINOPHENOL

Title (de)

UMWELTFREUNDLICHES VERFAHREN ZUR SELEKTIVEN ACYLIERUNG VON AMINOPHENOL

Title (fr)

PROCÉDÉ RESPECTUEUX DE L'ENVIRONNEMENT POUR L'ACYLATION SÉLECTIVE D'AMINOPHÉNOL

Publication

EP 4251605 A1 20231004 (EN)

Application

EP 21897334 A 20211111

Priority

  • IN 202021051134 A 20201124
  • IN 2021051062 W 20211111

Abstract (en)

[origin: WO2022113098A1] The present invention relates to an environment-friendly process for selective acylation of aminophenol. In particular, the present invention relates to an environment-friendly process for selective acylation of para-aminophenol to obtain N-acetyl-para-aminophenol (APAP).

IPC 8 full level

C07C 215/76 (2006.01)

CPC (source: EP US)

C07C 221/00 (2013.01 - US); C07C 231/04 (2013.01 - EP)

C-Set (source: EP)

C07C 231/04 + C07C 233/11

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

WO 2022113098 A1 20220602; EP 4251605 A1 20231004; US 12103900 B2 20241001; US 2023104724 A1 20230406

DOCDB simple family (application)

IN 2021051062 W 20211111; EP 21897334 A 20211111; US 202117904981 A 20211111